GSO 12 inch DOB Telescope (Silver) with Free Mobile Holder and Solar Film

A high quality Dobsonian telescope with parabolic optics with 300 mm aperture. GSO Dobsonians have mirrors in the upper quality range and convince with a low price. This telescope is ideal for deep sky observation.

The largest Dobsonian from GSO with a full tube. You need a station wagon or delivery van for transport. but a 300 mm aperture already offers unforgettable observation experiences. Nebulae and galaxies are already shown with details that are more reminiscent of astrophotography.

♦ High quality parabolic optics with 300 mm aperture and 1500 mm focal length.

♦ 94% mirror coating for a brighter, high-contrast image.

♦ Exact 2 “-Crayford focuser for precise focusing – with reduction to 1.25”.

♦ Stable metal tube and adjustable mirror mounts for optimal imaging even after many years.

♦ Good expandability even for astrophotography.

♦ Active main mirror ventilation accelerates the temperature adjustment of the telescope.

• Technical Specifications

  Optics :	Parabolic primary mirror made of BK7
  Opening :	300 mm – 12 “
  Focal length :	1500 mm
  Focal ratio :	f / 5
  Secondary mirror diameter :	70 mm
  Shadowing by the secondary mirror :	23.3% linear
  Adjustment aid :	Center mark on the main mirror
  Focuser :	2 “-Crayford pull-out with ring clamp and adapter to 1.25”
  Tube :	Metal tube with reinforcement rings
  Tube length :	1450 mm
  Tube diameter :	356 mm
  Tube weight :	19.5 kg
  Rockerbox weight :	13.2 kg
  Rockerbox dimensions :	Height 640 mm / diameter 635 mm
  Storage :	Height with spring preload / azimuth with ball bearings

  In The Box :

  ♦ GSO Dobsonian telescope
  ♦ Rockerbox – azimuthal mount
  ♦ Fan with battery holder
  ♦ 8×50 viewfinder with achromatic optics
  ♦ 25 mm 1.25 “Super Plössl eyepiece
  ♦ 35mm 2” extension
  ♦ Adjustment instructions and assembly instructions